重庆主城区组团隔离带景观格局分析评价及优化思考  

Analysis,Evaluation and Optimization Thoughts of the Landscape Pattern of the Cluster Isolation Belt in the Main Urban Districts of Chongqing

作　　者：宋秋明 武晓勇[2] 应鹏 李艳 肖阳 Song Qiuming;Wu Xiaoyong;Ying Peng;Li Yan;Xiao Yang

机构地区：[1]重庆市风景园林规划研究院,重庆401147 [2]重庆大学建筑城规学院,重庆400030

出　　处：《重庆建筑》2023年第6期13-17,共5页Chongqing Architecture

摘　　要：运用ArcGIS和Fragstats软件对重庆主城区组团隔离带现状绿地斑块进行景观格局指数计算分析,发现:(1)两山以外城市新区组团隔离带连接度高,但农业用地占比大、绿地类型单一、景观多样性差;(2)两山之间密集建成区组团隔离带连接度较低,破坏和侵占现象严重,但绿地类型丰富,异质性高;(3)山水之间生态连接弱,组团隔离带面积小,聚集度较高。组团隔离带规划及建设优化,首先应转变从单纯绿化隔离带到复合型城市生态廊道的概念认知;其次从“类型、数量、结构”三方面入手,优化总体景观格局,建构结构突显、绿色生态、功能多样的复合城市生态廊道系统。Through ArcGIS and Fragstats software,the landscape pattern index of the current green patches in the isolated belt of the main urban area of Chongqing are calculated and analyzed,and it is found that:(1)the isolation belt of the new urban area beyond the two mountains has high connectivity,with a large proportion of agricultural land,one single type of green space,and poor landscape diversity;(2)The isolation belt of the dense built-up areas between the two mountains has low connectivity,displaying serious problems of destruction and encroachment,but with diverse types of green space and high heterogeneity;(3)The ecological connection between mountains and rivers is weak,the cluster isolation belt has a small area,with a high degree of aggregation.To optimize the planning and construction of the cluster isolation belt,first of all,the conceptual cognition should be changed from the simple green isolation belt to the complex urban ecological corridor;Secondly,from the three aspects of“type,quantity and structure”the overall landscape pattern should be optimized to establish a complex urban ecological corridor system with a prominent structure,green ecology and diverse functions.

关 键 词：景观格局 组团隔离带 城市生态廊道 重庆主城区 

分 类 号：TU986[建筑科学—城市规划与设计]